63542117 has 2 divisors, whose sum is σ = 63542118. Its totient is φ = 63542116.

The previous prime is 63542113. The next prime is 63542131. The reversal of 63542117 is 71124536.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48804196 + 14737921 = 6986^2 + 3839^2 .

It is a cyclic number.

It is not a de Polignac number, because 63542117 - 2² = 63542113 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 63542117.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63542113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31771058 + 31771059.

It is an arithmetic number, because the mean of its divisors is an integer number (31771059).

Almost surely, 2^63542117 is an apocalyptic number.

It is an amenable number.

63542117 is a deficient number, since it is larger than the sum of its proper divisors (1).

63542117 is an equidigital number, since it uses as much as digits as its factorization.

63542117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5040, while the sum is 29.

The square root of 63542117 is about 7971.3309428225. The cubic root of 63542117 is about 399.0437930756.

The spelling of 63542117 in words is "sixty-three million, five hundred forty-two thousand, one hundred seventeen".